@mixin df{
    display: flex;
}
@mixin df-ac-jsb{
    display: flex;
    align-items: center;
    justify-content: space-between;
}
@mixin df-ac-jc{
    display: flex;
    align-items: center;
    justify-content: center;
}
@mixin df-jsb{
    display: flex;
    justify-content: space-between;
}
@mixin df-ac{
    display: flex;
    align-items: center;
}